Marine pollution has always shown many impacts on the environment all around the world. In this study, two of the impacts of debris are evaluated on the northern coast of the Mediterranean Sea in Morocco. The evaluation of the ingestion phenomenon of micro plastic in the fish, demonstrated that 10% was the percentage of fish samples which ingested microplastic for both species with higher values for the benthic fish, Diplodus cervinus, for the pelagic fish, Auxis thazard. The other impact detected is the presence of marine litter; 86% is the percentage of occurrence of waste in the fishing nets, which means the accumulation of debris in the seabed. This growth of marine litter leads to increased risk for marine biology in general, and to the appearance of other negative effects; in particular the low economic yield of this maritime activity.
Tangier city is considered as one of the most important commercial city in Africa as a result of the new construction of its port, Tangier Med. This study evaluated the abundance of micro and macro debris in Tangier beach and their pollution degree. In 2015, a total of 16 samples were collected by season and size between 1 and 5mm. The means of the results in macro debris are: 1651,4 g/season for plastic; 541,82 g/season for lumber/paper; 86,45 g/season for glass; 58,65 g/season for rubber; 42,5 g/season for metal; and 376,25 g/season for Cloth. The fragment presents the maximum rate with 18.75 g of a total of micro debris of 46,277g. The abundance of macro debris is maximum in season 2 (April-June), while the abundance of all types of macro debris is maximum in season 1 (January-March). The micro debris is very tiny throughout all the year.
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